Launch VZAccess Manager. From the Windows desktop, navigate: Start > All Programs (Programs) > VZAccess Manager. With Windows 10, click Start > Apps icon (located in the top-left corner) > All apps (located in the bottom-left corner) > VZAccess Manager.
If presented, enter the PIN then click OK. The default PIN is 1111.
Ensure the WWAN connection status indicates Not Connected (located in the lower left). If Connected, click File > Disconnect.
From the top menu, click Options > Preferences.
From the Device connection preference dropdown, select the desired option.